Objectives: The spontaneous language sample analysis is an important part of the language assessment protocol. Language samples give us useful information about how children use language in the natural situations of daily life. The purpose of this study was to compare Conversation, Freeplay, and narrative speech in aspects of Mean Length of Utterance (MLU), Type-token ratio (TTR), and the numbe...

Adopting the critical discourse analysis framework, in general, andFairclough’s (1989) critical text analysis, in particular, the current study aims atexamining 3 aspects of meaning, namely social relations, subject positions, andcontents in the conversation as well as vocabulary and grammar parts of Passages 1(an American textbook) and First Certificate (a British textbook) to find out whether...

This study explores how student learning via asynchronous, threaded discussion boards may be managed successful. We examine the elements of course scaffolding on that affect student learning and engagement in discussion. We explore the role of the instructor in mediating learning. We base our findings on an analysis of 21 online courses in the IS domain, conducted by multiple instructors over a...

We propose an approach to reasoning about conversation protocols within the framework of a logic-based agent language. We show how to embed a theory of communicative actions in the framework of a modal logic of action and beliefs, to specify software agents that, situated in a multi-agent environment, can interact with one another by a speech act based communication mechanism. Agents have their...